man repairing surfboard

Surfboards

surfboard repair: diy guide for common surfboard damage

By Kai Lenny

Published: 08 Mar 2025

The Day My Board Snapped

Let me tell you, there's nothing quite like the gut-wrenching feeling of watching your beloved surfboard snap in half. It happened to me last month – a beautiful, sunny day, perfect waves rolling in… and then crack. My $1,000 board was suddenly two pieces. I almost cried. Seriously. So, that’s when I decided I needed to learn how to repair surfboards. Not just for the money-saving aspect, but because I was heartbroken. Losing that board was worse than any wipeout!

This DIY guide is the result of my post-traumatic surfboard stress (PTS, I'm calling it). It's for anyone who's ever experienced the devastation of a broken board and wants to avoid that expensive trip to the shaper. Plus, you might find it’s pretty satisfying to bring your beloved plank back to life.

broken surfboard on the beach

broken surfboard on the beach | Image: Supplied

Assessing the Damage: Is it Worth Repairing?

Before you grab your tools, take a good look at the damage. Some repairs are simple fixes, while others… well, let's just say it might be cheaper to buy a new board. If the break is clean and the foam isn't too crushed, you're in luck! If it looks like a shark took a bite out of your board, or if the break is severely delaminated (that's when layers of fiberglass and foam separate), you might want to consult a professional. Unless you really enjoy a challenge. Then, go for it. Seriously though, small dings and cracks are usually totally manageable.

close up of surfboard damage

close up of surfboard damage | Image: Supplied

Gathering Your Arsenal: Essential Tools and Materials

You won't need a PhD in materials science, but you will need a few essential tools. Here's what I recommend:

  • Sandpaper: Various grits (e.g., 80, 120, 220). I prefer that nice, scratchy feeling. Not. This is crucial for smoothing out rough edges.
  • Epoxy Resin and Hardener: Make sure you get the marine-grade stuff. This is the glue that will hold your board together. Remember to follow the mixing ratio carefully!
  • Mixing Cups and Sticks: You'll need something to combine the resin and hardener in. I used plastic cups because it's easy to toss them afterward, but hey, I guess reusables would be better for the planet.
  • Cloth or Fiberglass Mat: This will reinforce the repair. The cloth is easier to handle for smaller jobs.
  • Putty Knife or Plastic Spreader: To evenly spread the resin and cloth.
  • Wax: For the final finishing touch. Choose the wax you like best, but personally, I'm a fan of the old-school stuff.
  • Razor Blade or Utility Knife: For cleaning up excess resin.
  • Gloves and Mask: Protect those precious hands and lungs!

Pro-Tip: Invest in quality epoxy resin. It's worth the extra few bucks for a stronger, more durable repair. I learned that the hard way...

Repairing Common Surfboard Damage

Let's tackle some common surfboard woes:

1. Dings and Cracks:

  • Clean the area: Remove any loose debris. I use compressed air to clear out the cracks before I start anything else.
  • Apply resin: Carefully fill the ding or crack with resin, making sure to get into all the nooks and crannies.
  • Sand it smooth: Once the resin is cured, sand the repair area smooth with your sandpaper, starting with coarser grits and gradually moving to finer grits. This step took a few hours... I know, super boring.

2. Pressure Dents:

  • Warm it up (carefully): Gently heat the dent with a hairdryer (be careful not to overheat). Don't be a maniac; you don't need to melt your board!
  • Apply pressure: Use a vacuum or your hands to gently pull the dent back out.
  • Sand and finish: Sand the area smooth, ensuring that the surface is even.

3. Major Breaks:

This is where things get a bit more complicated. If it's a clean break, you can clamp the two pieces together while the resin cures, then follow the steps for dings and cracks above. A professional might be a better option for more serious damage, but that’s up to you.

Important: Let the resin cure completely before hitting the waves again! You wouldn’t believe how tempting it is to jump back on your board before it has time to heal. Do it. Don’t. Just… wait.

surfboard repair process

surfboard repair process | Image: Supplied

Post-Repair TLC: Protecting Your Investment

Once your repair is complete, give your board some much-needed TLC. Wax it up, give it a good cleaning, and store it properly to prevent further damage. Trust me, a little preventative care goes a long way. I learned that lesson the hard way, too... by snapping another board (this time, a cheap one... I think I learned my lesson!).

well-maintained surfboard

well-maintained surfboard | Image: Supplied

The ocean is a powerful teacher. It will show you your strength, and it will show you your weaknesses.

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